LF709
Lead Free* Double Check Valve Assembly Backflow Preventers, Cast Iron, Sizes: 2 1/2 to 10 IN
Series LF709 Lead Free* double check valve assembly backflow preventers help stop the reverse flow of polluted water from entering into the potable water supply. This series has a modular check design for easy maintenance and is ideal at referenced cross-connections identified in non-health hazard applications. The series features Lead Free* construction to comply with Lead Free* installation requirements. Maximum working pressure is 175 psi (12.06 bar).
The coating on this backflow assembly uses ArmorTek®, a patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion.
To learn more visit: https://www.watts.com/armortek
The IOT model features sensor technology integrated on test cocks to measure pressure fluctuations at three points. Pressure measurements allow assessment of the performance of the backflow preventer assembly. An add-on monitoring connection kit is required to collect, convert, and transmit data values to a building management system.
To learn more visit: Series LF007-LF709 with Pressure Monitoring
Features
- Maximum flow rate at low pressure drop
- Replaceable stainless steel seats
- Modular, compact design to facilitate assembly and maintenance
- Captured spring assemblies for safety
- Advanced ArmorTek™ coating technology to resist corrosion of internals
- Pressure sensors on IOT models, activated with add-on monitoring connection kit
- Lead free* top-mounted test cocks
- Approved for vertical flow-up installation
Literature
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- 709, LF709 - Repair Kits Parts Breakdown
- Brochure - Backflow Prevention and Flow Control for Waterworks
- Brochure - Backflow Prevention and Flow Control Plumbing
- Flyer - Pressure Monitoring with SentryPlus Alert Technology
- Flyer - Pressure Monitoring with SentryPlus Alert Technology (French)
- Installation Instructions - 709, LF709, 709DCDA
- Installation Instructions - Pressure Sensing BMS Monitoring Connection Kit - LF007 and LF709
- Installation Instructions - Pressure Sensor Module Replacement Kit - LF007 and LF709
- Specification Sheet - LF709
- Specification Sheet - LF709 (French)
- Specification Sheet - LF709 (Spanish)
- Specification Sheet - Pressure Sensor
- White Paper - ArmorTek Advanced Coating System
Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:
| ASSE | CSA | FM Approvals | NSF |
| UL | ULC | USC | WQA |